<template>
  <div>
    <content-box one="角色管理" two="角色列表">
      <el-row>
        <el-col>
          <el-button type="primary">添加角色</el-button>
        </el-col>
      </el-row>
      <el-table :data="roleList" border stripe>
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', i1 === 0 ? 'bdtop' : '', 'vcenter']"
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
            >
              <!--一级权限 -->
              <el-col :span="5"
                ><el-tag
                  closable
                  @close="removeItemByID(scope.row, item1.id)"
                  >{{ item1.authName }}</el-tag
                >
                <i class="el-icon-caret-right"></i
              ></el-col>
              <!-- 二三级权限 -->
              <el-col :span="19">
                <el-row
                  :class="[i2 == 0 ? '' : 'bdtop', 'vcenter']"
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                  ><el-col :span="6">
                    <el-tag
                      type="success"
                      closable
                      @close="removeItemByID(scope.row, item2.id)"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      v-for="(item3, i3) in item2.children"
                      :key="item3.id"
                      type="warning"
                      closable
                      @close="removeItemByID(scope.row, item3.id)"
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <!-- 索引列 -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope" width="300px">
            <el-button size="mini" type="primary" icon="el-icon-edit"
              >编辑</el-button
            >
            <el-button size="mini" type="danger" icon="el-icon-delete"
              >删除</el-button
            >
            <el-button
              size="mini"
              type="warning"
              icon="el-icon-setting"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </content-box>
    <!-- 分配权限对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
    >
      <!-- 获取树形结构 -->
      <el-tree
        :data="rightList"
        :props="treeProps"
        show-checkbox
        node-key="id"
        :default-expand-all="true"
      ></el-tree>
      <!-- :default-check-keys="defkeys" -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRightDialogVisible = false"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    return {
      roleList: [],
      setRightDialogVisible: false,
      rightList: [],
      //树形控件的属性绑定对象
      treeProps: {
        label: "authName",
        children: "children",
      },
      //默认选中的节点
      defkeys: [],
    };
  },
  created() {
    this.getRoleList();
  },
  methods: {
    async getRoleList() {
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200)
        return this.$message.console.error("获取角色列表失败");
      this.roleList = res.data;
      this.$message.success("获取角色列表成功");
    },
    //根据Id删除对应权限
    async removeItemByID(role, right) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该文件, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
        //点击取消会触发$confirm错误
      ).catch((err) => err);
      if (confirmResult !== "confirm") return this.$message.info("已取消删除");
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${right}`
      );
      if (res.meta.status !== 200) return this.$message.error("删除权限失败");
      role.children = res.data;
    },
    //展示权限分配对话框
    async showSetRightDialog(role) {
      //获取所有数据
      const { data: res } = await this.$http.get("rights/tree");
      if (res.meta.status !== 200)
        return this.$message.error("获取权限数据失败");
      this.rightList = res.data;
      //   console.log(this.rightList);
      // this.getLeafKeys(role,this.defkeys)
      this.setRightDialogVisible = true;
    },
    // //通过递归的形式，获取角色下所有三级权限的id，并保存到defkeys数组中
    // getLeafKeys(node, arr) {
    //   //如果当前node节点不包含children属性，则是三级节点
    //   if (!node.children) {
    //     return arr.push(node.id);
    //   }
    //   node.children.forEach(item =>  this.getLeafKeys(item, arr));
    // },
  },
};
</script>

<style lang="less" scoped>
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>